Full-Length Mock Test 9 — RRB JE CBT 2 Technical Abilities Pattern (100 MCQs)
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Section A: Building Materials and Construction (20 Questions)
- The primary raw materials used in manufacturing ordinary Portland cement are:
(a) Limestone and clay (b) Steel scrap and glass (c) Bitumen and sand only (d) Timber and bamboo - The "clinker" produced in cement manufacture is formed by heating raw materials in a:
(a) Rotary kiln at high temperature (b) Cold storage chamber (c) Water tank (d) Timber seasoning chamber - Cement bags are conventionally packed with a standard weight of:
(a) 50 kg (b) 5 kg (c) 500 kg (d) 1 kg - "Hydration" of cement refers to the chemical reaction between cement and:
(a) Water (b) Air alone with no water involved (c) Sunlight alone (d) Only aggregate with no water - The heat generated during cement hydration is known as:
(a) Heat of hydration (b) Heat of combustion (c) Latent heat of fusion of steel (d) Heat of vaporisation of aggregate - Excessive heat of hydration in mass concrete pours can lead to:
(a) Thermal cracking due to temperature differentials (b) Instant, uniform strength gain with no cracking risk (c) Complete prevention of any hydration (d) No practical consequence whatsoever - Aggregate "grading" refers to:
(a) The particle size distribution of the aggregate (b) The colour of the aggregate only (c) The cost of the aggregate only (d) The country of origin of the aggregate - A sieve analysis is performed to determine an aggregate's:
(a) Particle size distribution/grading (b) Chemical composition (c) Setting time (d) Colour - "Zone" classification of fine aggregate (sand), as per IS 383, is based on:
(a) Percentage passing through various sieve sizes (b) The sand's colour (c) The sand's cost (d) The sand's country of origin - Silt content in sand, if excessive, can adversely affect concrete by:
(a) Reducing bond between cement paste and aggregate, lowering strength (b) Always increasing strength with no downside (c) Having no effect whatsoever on concrete properties (d) Improving workability with no downside - A "brick earth" suitable for brick manufacture should ideally be free from excessive:
(a) Pebbles, organic matter, and excess lime lumps (b) Clay content entirely, with none permitted (c) Water content at the moulding stage exclusively (d) Any mineral content whatsoever - The "moulding" stage of brick manufacture involves:
(a) Shaping the prepared clay into the required brick form (b) Firing the brick at high temperature (c) Crushing the fired brick (d) Painting the finished brick - "Drying" of moulded bricks before firing is done primarily to:
(a) Remove excess moisture and prevent cracking during firing (b) Increase the brick's moisture content further (c) Replace the need for firing entirely (d) Add colour to the brick - "Firing" (burning) of bricks in a kiln is done to:
(a) Achieve the required strength and hardness through a controlled high-temperature process (b) Remove the clay content entirely (c) Add reinforcement bars into the brick (d) Add a waterproof membrane coating - Which type of kiln is commonly associated with modern, large-scale, continuous brick firing?
(a) Tunnel kiln (b) An open bonfire with no kiln structure (c) A microwave oven (d) A refrigeration unit - Timber classified as "hardwood" (e.g., teak, sal) is generally distinguished from softwood by:
(a) Its botanical origin (broadleaved trees) rather than its physical hardness alone (b) Always being physically softer than any softwood (c) Never being used in construction (d) Always costing less than softwood - "Knots" in timber, a natural defect, arise from:
(a) The base of branches embedded within the tree trunk (b) Insect infestation exclusively (c) Chemical treatment exclusively (d) Excessive seasoning exclusively - A "veneer" is a:
(a) Thin layer/sheet of wood, often used in plywood or decorative facing (b) A thick structural timber beam (c) A type of cement admixture (d) A type of reinforcement bar - Preservative treatment of timber (e.g., with creosote or CCA) is done primarily to protect against:
(a) Fungal decay and insect/termite attack (b) Excessive strength gain (c) Excessive colour fading only (d) Excessive weight gain only - The moisture content of properly seasoned timber intended for indoor use is generally reduced to approximately:
(a) 10-12 percent (b) 90-100 percent (c) 0 percent exactly, with absolutely no moisture (d) 300 percent
Section B: Surveying (20 Questions)
- Which surveying method is best suited for large-scale national mapping projects covering an entire country?
(a) Geodetic surveying, using triangulation/GNSS networks accounting for Earth's curvature (b) Simple plane table surveying alone, with no other method (c) Only chain surveying, with no other instrument (d) Only compass surveying, with no other instrument - "First-order" triangulation/control surveys, as classified by national survey agencies, are characterised by:
(a) The highest precision, used for primary control networks (b) The lowest precision, used only for rough sketches (c) No practical application in modern surveying (d) Use exclusively for underwater surveys - A "geoid" in geodesy refers to:
(a) An equipotential surface approximating mean sea level, used as a reference for elevation (b) A type of surveying instrument (c) A type of soil classification (d) A type of concrete admixture - An "ellipsoid" used as a mathematical reference surface in geodesy approximates:
(a) The Earth's overall shape for coordinate computation purposes (b) A single surveying instrument's shape (c) A single building's foundation shape (d) A single soil sample's shape - Coordinate systems such as UTM (Universal Transverse Mercator) are used in surveying/GIS to:
(a) Represent the curved Earth's surface on a flat plane with defined coordinates (b) Measure cement setting time (c) Measure concrete slump (d) Measure soil plasticity - "Datum shift" issues in surveying/GIS arise when:
(a) Data referenced to different geodetic datums are combined without proper transformation (b) No datum is ever used in any survey (c) Only paper maps are used, with no digital data involved (d) The surveyor changes instruments mid-survey - Which of the following best describes the practical importance of maintaining consistent survey datums on a large infrastructure project spanning many years?
(a) Ensuring all design/construction data remain consistently referenced and compatible (b) Reducing the need for any further surveying at all (c) Allowing each contractor to use an arbitrary, unrecorded reference with no consequence (d) Having no practical importance whatsoever - "Aerial triangulation" in photogrammetry is used to:
(a) Establish accurate ground control/orientation for a block of overlapping aerial photographs (b) Measure soil bearing capacity directly (c) Measure cement fineness directly (d) Measure concrete slump directly - In modern integrated surveying practice, GNSS, total stations, and levelling instruments are often used:
(a) In combination, chosen according to the required accuracy/site conditions (b) Never together, only one method being permitted per project (c) Only GNSS is ever used, with all other instruments obsolete (d) Only levelling is ever used, with all other instruments obsolete - Which of the following best describes why redundant (repeated) observations are taken in precise surveying work?
(a) To detect and minimise the effect of random errors through averaging/adjustment (b) To increase the survey's total cost with no accuracy benefit (c) To intentionally introduce additional error (d) To replace the need for any error checking - Least squares adjustment, used in precise geodetic computations, is a mathematical method to:
(a) Distribute observational errors optimally across a redundant network of measurements (b) Eliminate the need for any measurement entirely (c) Increase random error deliberately (d) Serve no practical surveying purpose - A "network adjustment" of a large control survey aims to produce:
(a) A consistent, best-fit set of coordinates for all points in the network (b) A single arbitrary coordinate with no consistency check (c) No coordinates at all (d) Only a qualitative sketch with no numerical values - Precise levelling networks (e.g., for large infrastructure or geodetic purposes) commonly use:
(a) High-precision digital/automatic levels with invar staves (b) Only a compass with no levelling instrument (c) Only a plane table with no levelling instrument (d) Only GNSS with no levelling verification at all - "Invar" staves/tapes used in precision surveying are valued for their:
(a) Very low thermal expansion coefficient, minimising temperature-related error (b) Extremely high thermal expansion, maximising temperature sensitivity (c) Complete lack of any metallic composition (d) Use exclusively as decorative material - Modern surveying increasingly integrates BIM (Building Information Modelling) with survey data to:
(a) Support coordinated digital design, construction, and as-built documentation (b) Replace the need for any field surveying entirely (c) Serve only an architectural rendering purpose with no engineering use (d) Have no relevance to construction surveying - A key benefit of integrating GIS with survey and asset data for infrastructure agencies is:
(a) Improved spatial planning, maintenance, and decision-making (b) No benefit at all compared to isolated paper records (c) Increased data loss risk with no other effect (d) Elimination of the need for any future surveying - Survey control markers (benchmarks, pillars) are typically protected/maintained because:
(a) They provide a long-term reference essential for consistent future surveys (b) They serve no functional purpose after initial installation (c) They are purely decorative landmarks (d) They are replaced before every single new survey regardless of condition - Which of the following best describes why civil engineers, not only professional surveyors, need a working understanding of surveying principles?
(a) Engineers routinely interpret survey data and set out/verify construction work (b) Surveying has no relevance to civil engineering practice (c) Only surveyors ever need to understand angles/distances (d) Civil engineers never interact with survey data in practice - Understanding both traditional (chain, compass, plane table) and modern (GNSS, total station, LiDAR) surveying methods benefits an RRB JE candidate because:
(a) Both categories may be tested and both remain relevant in varied field conditions (b) Only traditional methods are ever tested (c) Only modern methods are ever tested (d) Neither category has any relevance to the exam - Overall, the surveying portion of the RRB JE Civil Engineering syllabus emphasises:
(a) Practical measurement principles, instruments, and computation methods used in the field (b) Only historical facts with no practical/technical content (c) Only artistic map-drawing skills with no measurement content (d) Only administrative record-keeping with no technical content
Section C: Concrete Technology, RCC, and Theory of Structures (20 Questions)
- In RCC design, "effective depth" of a beam/slab refers to the distance from the extreme compression fibre to the:
(a) Centroid of the tension reinforcement (b) Bottom-most extreme fibre of concrete, ignoring steel location (c) Neutral axis exclusively, defined independent of reinforcement (d) Top of the stirrup, ignoring main bar location - The "modular ratio method" of RCC design is otherwise generally known as:
(a) The Working Stress Method (WSM) (b) The Limit State Method (LSM) exclusively (c) The Ultimate Load Method exclusively, unrelated to WSM (d) A method used only for steel structures, never RCC - In a reinforced concrete column, "longitudinal reinforcement" primarily resists:
(a) Axial compressive load, along with any bending (b) Shear force exclusively, with no axial role (c) Only torsional moment, with no compressive role (d) No load at all - "Lateral ties" (or spiral reinforcement) in an RCC column primarily serve to:
(a) Restrain longitudinal bars against buckling and confine the concrete core (b) Resist the main axial load entirely, replacing longitudinal bars (c) Serve a purely decorative function (d) Replace the need for concrete cover - A "spirally reinforced" column, compared to a tied column, generally offers:
(a) Greater ductility and confinement of the concrete core (b) Lower load capacity always (c) No difference in structural behaviour whatsoever (d) Complete elimination of the need for longitudinal steel - The minimum percentage of longitudinal reinforcement typically specified for RCC columns (per common code provisions) is around:
(a) 0.8 percent of the gross cross-sectional area (b) 50 percent of the gross cross-sectional area (c) 0 percent, i.e., no minimum requirement exists (d) 99 percent of the gross cross-sectional area - The maximum percentage of longitudinal reinforcement typically permitted for RCC columns (per common code provisions) is around:
(a) 6 percent of the gross cross-sectional area (under normal conditions) (b) 0.1 percent (c) 100 percent (d) There is no upper limit whatsoever - A "short column" failure in RCC design is generally governed by:
(a) Material crushing/strength failure rather than buckling (b) Elastic buckling exclusively, with no material strength consideration (c) Torsional failure exclusively (d) No failure mode is applicable to short columns - A "long/slender column" failure in RCC design must additionally consider:
(a) Buckling effects and additional moments due to slenderness (b) Only material crushing, with no buckling consideration at all (c) Only aesthetic appearance (d) Only the column's colour - "Isolated footing" design typically checks for:
(a) Bearing pressure, one-way (beam) shear, two-way (punching) shear, and bending moment (b) Only the footing's colour (c) Only the footing's cost (d) Only the footing's construction duration - "Combined footing" design differs from isolated footing design primarily in accounting for:
(a) Interaction effects and load distribution between multiple columns (b) No difference at all in design approach (c) Only the footing's decorative finish (d) Only the footing's paint colour - In staircase design, a "waist slab" refers to:
(a) The inclined slab portion supporting the steps in a staircase (b) The horizontal landing slab exclusively, with no inclined portion (c) The vertical support wall exclusively (d) The handrail exclusively - The "going" and "rise" of a staircase step refer respectively to:
(a) The horizontal tread width and the vertical height of each step (b) The total staircase length and total staircase cost (c) The staircase's colour and material grade (d) The handrail height and railing material - A "dog-legged" staircase is a common staircase type characterised by:
(a) Two flights running in opposite directions with a landing between them (b) A single straight flight with no landing at all (c) A spiral configuration exclusively (d) No steps at all, only a ramp - Retaining wall design commonly considers earth pressure theories such as:
(a) Rankine's or Coulomb's theory (b) Only Bernoulli's theorem, with no earth pressure theory (c) Only Manning's formula, with no earth pressure theory (d) Only Darcy's law, with no earth pressure theory - A "counterfort" retaining wall, compared to a simple cantilever retaining wall, is generally used for:
(a) Greater heights, where counterforts help resist bending in the wall stem (b) Very low heights only, where no additional support is ever needed (c) Purely decorative garden walls only (d) Underwater structures exclusively - "Gravity retaining walls" primarily rely on:
(a) Their own self-weight to resist overturning/sliding (b) Reinforcement steel exclusively, with no reliance on self-weight (c) External cables exclusively, with no self-weight reliance (d) Adjacent buildings for support - Culvert design for road/railway crossings over small streams typically considers:
(a) Hydraulic discharge capacity along with structural load-bearing requirements (b) Only structural load with no hydraulic consideration whatsoever (c) Only hydraulic discharge with no structural consideration whatsoever (d) Only aesthetic appearance - "Box culverts" are a common culvert type characterised by:
(a) A rectangular/box-shaped RCC cross-section (b) A circular pipe cross-section exclusively, never rectangular (c) No defined cross-sectional shape at all (d) Use exclusively for pedestrian overbridges, never for drainage - A comprehensive understanding of RCC element design (beams, columns, slabs, footings, staircases, retaining walls) is emphasised in RRB JE preparation because:
(a) These are core structural elements encountered in typical railway/civil infrastructure work (b) They have no relevance to a Junior Engineer's likely duties (c) Only architects need this knowledge, not engineers (d) This knowledge is tested only in interviews, never in the written exam
Section D: Geotechnical, Hydraulics, and Environmental Engineering (20 Questions)
- A "geotechnical report" for a project typically recommends:
(a) Suitable foundation type(s) and allowable bearing capacity based on site investigation (b) Only the architectural design of the building (c) Only the paint colour scheme (d) Only the project's overall budget - "In-situ" soil testing methods (conducted at the site itself) include:
(a) Standard Penetration Test and plate load test (b) Only laboratory sieve analysis, never conducted in the field (c) Only laboratory Atterberg limit tests, never conducted in the field (d) Only laboratory compaction tests, never conducted in the field - A "plate load test" is conducted primarily to estimate:
(a) The in-situ bearing capacity/settlement characteristics of soil (b) The setting time of cement (c) The slump of concrete (d) The plasticity index of soil in the laboratory only - "Settlement" of a foundation refers to:
(a) The vertical downward movement of a foundation under load (b) The horizontal sliding of a foundation (c) The foundation's construction cost (d) The foundation's paint colour - "Allowable settlement" limits are specified in foundation design primarily to:
(a) Prevent excessive structural distress/serviceability issues (b) Encourage maximum possible settlement with no limit (c) Determine the foundation's colour (d) Determine the foundation's cost only - A "differential settlement" between two parts of a structure is generally considered more critical than uniform settlement because it:
(a) Induces additional stresses/distortion in the structure (b) Has no structural consequence whatsoever (c) Always improves the structure's stability (d) Is identical in effect to uniform settlement - Soil "bearing capacity" tests and calculations are essential inputs primarily for:
(a) Foundation design and sizing (b) Roof truss design exclusively, with no foundation relevance (c) Electrical wiring layout (d) Paint specification - A "raft foundation" analysis often uses simplified methods such as:
(a) The rigid/conventional method or the flexible (elastic) method (b) Only visual estimation with no analytical method (c) Only the cement grade chart, with no structural analysis (d) Only the paint colour chart - Pile load testing (e.g., a static load test) is conducted primarily to:
(a) Verify the actual load-carrying capacity of an installed pile (b) Test the pile's paint finish only (c) Test the pile's colour only (d) Replace the need for any design calculation altogether - "Negative skin friction" mitigation measures on piles may include:
(a) Providing a bitumen/sleeve coating to reduce soil-pile friction in the affected zone (b) Deliberately roughening the pile surface to maximise friction (c) Removing the pile entirely with no mitigation (d) Ignoring the issue, as it has no engineering significance - "Open channel" flow classification includes "uniform flow," which occurs when:
(a) Depth and velocity remain constant along the channel length (b) Depth and velocity vary continuously along the length (c) Flow direction reverses periodically (d) No flow occurs at all - "Non-uniform" (varied) open channel flow occurs when:
(a) Depth and/or velocity change along the channel length (b) Depth and velocity remain perfectly constant (c) The channel has no water at all (d) The channel is perfectly circular in cross-section - "Gradually varied flow" (GVF) in open channels refers to flow where depth changes:
(a) Gradually over a relatively long distance (b) Abruptly over a very short distance (c) Not at all, i.e., uniform flow (d) Only in closed pipes, never in open channels - "Rapidly varied flow" (RVF), such as at a hydraulic jump, refers to flow where depth changes:
(a) Abruptly over a short distance (b) Gradually over a long distance (c) Not at all (d) Only in groundwater flow, never in open channels - The "normal depth" of flow in a channel is the depth at which flow is:
(a) Uniform, for a given discharge and channel characteristics (b) Always at its maximum possible value regardless of discharge (c) Always zero (d) Unrelated to discharge or channel characteristics - Channel "roughness coefficient" (e.g., Manning's n) accounts for:
(a) Resistance to flow due to the channel bed/side material and irregularities (b) The channel's colour only (c) The channel's construction cost only (d) The channel's ownership status only - "Groundwater recharge structures" such as percolation tanks/pits primarily aim to:
(a) Enhance infiltration of surface water into the aquifer (b) Prevent any water from infiltrating the ground (c) Serve only a decorative landscaping function (d) Replace the need for any surface water source - "Point source" water pollution refers to pollution originating from:
(a) A single, identifiable discharge location such as an industrial outfall (b) Multiple, diffuse, difficult-to-pinpoint sources like agricultural runoff (c) No identifiable source at all (d) Only natural, non-human causes - "Non-point source" water pollution refers to pollution originating from:
(a) Diffuse sources such as agricultural runoff or urban stormwater across a wide area (b) A single, easily identifiable pipe outfall only (c) No source at all (d) Only a single industrial facility - Overall, robust geotechnical and hydraulic engineering practice is essential in civil/railway infrastructure primarily because:
(a) Ground and water conditions critically influence the safety, stability, and performance of structures (b) These subjects have no bearing on structural safety whatsoever (c) Only architectural aesthetics matter for structural performance (d) Only the availability of funding determines structural safety
Section E: General Awareness, Computer Applications, and Current Affairs (20 Questions)
- Which of the following best describes India's "National Water Mission"?
(a) A mission aimed at water conservation, minimising wastage, and equitable distribution (b) A mission focused solely on space research (c) A mission focused solely on railway electrification (d) A mission focused solely on banking regulation - Which of the following best describes India's approach to "smart metering" in urban water/electricity infrastructure?
(a) Using digital meters for real-time consumption monitoring and improved resource management (b) A method of concrete curing (c) A method of soil stabilisation (d) A method of surveying using satellites only - Which of the following best describes "MGNREGA" (Mahatma Gandhi National Rural Employment Guarantee Act)?
(a) A scheme guaranteeing rural employment, often through infrastructure/public works (b) A scheme focused solely on urban housing (c) A scheme focused solely on banking reform (d) A scheme focused solely on space research - Which of the following best describes a "computer network protocol" such as TCP/IP?
(a) A set of rules governing data communication between networked devices (b) A type of physical construction material (c) A type of surveying instrument (d) A type of concrete admixture - Which of the following best describes "IPv4" and "IPv6" in networking?
(a) Versions of the Internet Protocol used for addressing devices on a network (b) Types of construction materials (c) Types of surveying instruments (d) Types of concrete grades - In spreadsheet applications, "conditional formatting" is used to:
(a) Automatically format cells based on specified conditions/criteria (b) Permanently delete cell content (c) Encrypt a worksheet (d) Print a worksheet automatically - Which of the following best describes "MS PowerPoint," a commonly used office application?
(a) Software for creating slide-based presentations (b) Software for database management exclusively (c) Software for spreadsheet calculations exclusively (d) Software for concrete mix design exclusively - Which of the following best describes the "National Career Service" scheme's relevance to technical job seekers, including engineering aspirants?
(a) It provides a platform to search for jobs, including technical/engineering positions (b) It provides free housing exclusively (c) It provides free railway travel exclusively (d) It has no relevance to job seekers of any kind - Which of the following best describes India's overall commitment under international climate agreements regarding emissions/renewable energy?
(a) Pursuing targets for reduced emissions intensity and increased renewable energy capacity (b) No commitment of any kind has been made (c) A commitment focused solely on increasing coal usage (d) A commitment focused solely on banking regulation - Which of the following best describes "net metering" as applied to rooftop solar installations?
(a) A billing mechanism crediting consumers for excess solar power fed back to the grid (b) A method of concrete curing (c) A method of soil compaction (d) A method of cement grading - Which of the following best describes the "Atmanirbhar Bharat" (self-reliant India) initiative?
(a) A broad initiative promoting self-reliance across manufacturing and other sectors (b) A programme focused solely on foreign investment with no domestic focus (c) A programme focused solely on tourism (d) A programme focused solely on space research - Which of the following best describes a typical "helpdesk" or "grievance redressal" digital portal used by government infrastructure agencies?
(a) An online system for citizens to register/track complaints or service requests (b) A purely offline paper-based system with no digital component (c) A system used only for internal staff payroll (d) A system unrelated to citizen services - Which of the following best describes "MOOC" (Massive Open Online Course) platforms relevant to engineering skill upgradation?
(a) Online platforms offering courses accessible to a large number of learners (b) A type of construction material testing standard (c) A type of surveying instrument (d) A type of concrete admixture - Which of the following best describes "e-NAM" (National Agriculture Market)?
(a) An online trading platform for agricultural commodities (b) A railway ticket booking platform (c) A construction material grading platform (d) A banking loan platform - Which of the following best describes the general purpose of "RTI" (Right to Information) legislation in India?
(a) Enabling citizens to request information from public authorities, promoting transparency (b) Restricting all information from public access (c) A scheme unrelated to governance transparency (d) A scheme focused solely on railway ticketing - Which of the following best describes the term "e-procurement" as used in government infrastructure contracting?
(a) Conducting procurement/purchasing processes through electronic/online systems (b) A purely manual paper-based procurement process (c) A method of concrete curing (d) A method of soil testing - Which of the following best describes the significance of continually updated General Awareness preparation for RRB JE candidates?
(a) Government schemes, technology, and current events are dynamic and regularly tested (b) General Awareness content never changes and requires no updates (c) General Awareness is not part of the RRB JE syllabus at all (d) Only static historical facts are ever tested, with no current affairs component - Which of the following best summarises the role of computer applications knowledge in the RRB JE CBT 2 syllabus?
(a) It forms a distinct tested component alongside technical, general awareness, and other sections (b) It is entirely absent from the syllabus (c) It is tested only for non-technical posts, never for JE Civil (d) It replaces the technical section entirely with no independent testing - Which of the following best describes why candidates should revise formulas, standard values, and definitions systematically before the exam?
(a) Quick, accurate recall under time pressure is essential for the technical sections (b) Formulas are never tested in the RRB JE exam (c) Only qualitative descriptions are tested, with no formula-based questions (d) Revision has no bearing on exam performance - Overall, this concluding mock test reinforces that thorough, well-rounded preparation across surveying, structural, geotechnical, hydraulic, environmental, and general awareness topics is:
(a) Central to performing well in the RRB JE Civil Engineering CBT 2 examination (b) Irrelevant to actual exam performance (c) Useful only for the interview stage, not the written exam (d) Useful only for candidates targeting non-technical posts
Answer Key with Explanations
1.(a) OPC's primary raw materials are limestone and clay.
2.(a) Clinker forms by heating raw materials in a rotary kiln.
3.(a) Cement bags are conventionally 50 kg.
4.(a) Hydration is cement's chemical reaction with water.
5.(a) Heat generated during hydration is called heat of hydration.
6.(a) Excessive hydration heat can cause thermal cracking in mass concrete.
7.(a) Grading refers to aggregate particle size distribution.
8.(a) Sieve analysis determines particle size distribution/grading.
9.(a) Sand zoning per IS 383 is based on sieve-passing percentages.
10.(a) Excessive silt reduces bond/strength in concrete.
11.(a) Good brick earth should be free of excessive pebbles/organic matter/lime lumps.
12.(a) Moulding shapes prepared clay into brick form.
13.(a) Drying removes excess moisture, preventing firing cracks.
14.(a) Firing achieves required strength/hardness via controlled high heat.
15.(a) Tunnel kilns suit modern large-scale continuous brick firing.
16.(a) Hardwood classification is botanical (broadleaved trees), not about physical hardness alone.
17.(a) Knots arise from branch bases embedded in the trunk.
18.(a) A veneer is a thin wood sheet used in plywood/facing.
19.(a) Preservative treatment protects against fungal decay/insect attack.
20.(a) Seasoned indoor timber moisture content is roughly 10-12 percent.
21.(a) Geodetic surveying with triangulation/GNSS suits national mapping, accounting for curvature.
22.(a) First-order surveys have the highest precision for primary control.
23.(a) A geoid approximates mean sea level as an equipotential reference surface.
24.(a) An ellipsoid mathematically approximates Earth's shape for coordinates.
25.(a) UTM represents the curved Earth on a flat plane with coordinates.
26.(a) Datum shift issues arise from combining differently-referenced data without transformation.
27.(a) Consistent datums keep design/construction data compatible over time.
28.(a) Aerial triangulation establishes ground control/orientation for photo blocks.
29.(a) GNSS, total stations, and levels are combined per accuracy/site needs.
30.(a) Redundant observations detect/minimise random error via averaging/adjustment.
31.(a) Least squares adjustment optimally distributes error across a redundant network.
32.(a) Network adjustment produces a consistent best-fit coordinate set.
33.(a) Precise levelling uses high-precision digital/automatic levels with invar staves.
34.(a) Invar has very low thermal expansion, minimising temperature error.
35.(a) Survey-BIM integration supports coordinated digital design/construction/as-built work.
36.(a) GIS-asset integration improves spatial planning/maintenance/decision-making.
37.(a) Benchmarks/pillars provide long-term reference for future surveys.
38.(a) Engineers routinely interpret survey data and set out/verify construction.
39.(a) Both traditional and modern methods remain relevant and may be tested.
40.(a) The syllabus emphasises practical measurement principles/instruments/computation.
41.(a) Effective depth runs from the extreme compression fibre to the tension steel centroid.
42.(a) The modular ratio method is otherwise known as WSM.
43.(a) Longitudinal reinforcement in columns resists axial load plus bending.
44.(a) Lateral ties/spirals restrain bars against buckling and confine the core.
45.(a) Spiral columns offer greater ductility/confinement than tied columns.
46.(a) Minimum longitudinal steel in columns is commonly around 0.8 percent of gross area.
47.(a) Maximum longitudinal steel in columns is commonly around 6 percent under normal conditions.
48.(a) Short column failure is governed by material crushing, not buckling.
49.(a) Long column design must consider buckling and slenderness-induced moments.
50.(a) Isolated footing design checks bearing pressure, one-way/two-way shear, and moment.
51.(a) Combined footing design accounts for interaction/distribution across multiple columns.
52.(a) A waist slab is the inclined slab supporting staircase steps.
53.(a) Going and rise are the tread width and step height respectively.
54.(a) A dog-legged staircase has two opposite-direction flights with a landing between.
55.(a) Retaining wall design commonly uses Rankine's or Coulomb's earth pressure theory.
56.(a) Counterfort walls suit greater heights, resisting stem bending via counterforts.
57.(a) Gravity walls rely on self-weight to resist overturning/sliding.
58.(a) Culvert design considers both hydraulic capacity and structural load.
59.(a) Box culverts have a rectangular/box RCC cross-section.
60.(a) RCC element design knowledge reflects core structures in real infrastructure work.
61.(a) A geotechnical report recommends foundation type and allowable bearing capacity.
62.(a) In-situ tests include SPT and plate load tests.
63.(a) A plate load test estimates in-situ bearing capacity/settlement.
64.(a) Settlement is a foundation's vertical downward movement under load.
65.(a) Allowable settlement limits prevent structural distress/serviceability issues.
66.(a) Differential settlement induces additional stress/distortion, more critical than uniform settlement.
67.(a) Bearing capacity tests/calculations are essential for foundation design/sizing.
68.(a) Raft analysis uses rigid/conventional or flexible (elastic) methods.
69.(a) Pile load testing verifies actual installed-pile capacity.
70.(a) Bitumen/sleeve coating mitigates negative skin friction on piles.
71.(a) Uniform flow has constant depth/velocity along the channel.
72.(a) Non-uniform (varied) flow has changing depth/velocity along the length.
73.(a) GVF has gradual depth change over a long distance.
74.(a) RVF has abrupt depth change over a short distance, e.g. at a hydraulic jump.
75.(a) Normal depth is the uniform-flow depth for a given discharge/channel.
76.(a) Roughness coefficient (Manning's n) accounts for bed/side resistance to flow.
77.(a) Recharge structures enhance infiltration into the aquifer.
78.(a) Point-source pollution comes from a single identifiable discharge location.
79.(a) Non-point-source pollution comes from diffuse sources over a wide area.
80.(a) Ground/water conditions critically influence structural safety/stability/performance.
81.(a) The National Water Mission targets conservation, reduced wastage, and equitable distribution.
82.(a) Smart metering enables real-time consumption monitoring for better resource management.
83.(a) MGNREGA guarantees rural employment, often via public works.
84.(a) TCP/IP is a protocol set governing networked data communication.
85.(a) IPv4/IPv6 are Internet Protocol versions for device addressing.
86.(a) Conditional formatting auto-formats cells based on set criteria.
87.(a) MS PowerPoint creates slide-based presentations.
88.(a) NCS provides a job-search platform including technical positions.
89.(a) India pursues reduced emissions intensity and increased renewable capacity targets.
90.(a) Net metering credits consumers for excess solar power fed to the grid.
91.(a) Atmanirbhar Bharat promotes self-reliance across manufacturing/other sectors.
92.(a) Grievance portals let citizens register/track complaints online.
93.(a) MOOCs are online courses accessible to large numbers of learners.
94.(a) e-NAM is an online agricultural commodity trading platform.
95.(a) RTI enables citizens to request information, promoting transparency.
96.(a) e-Procurement conducts purchasing/procurement processes electronically.
97.(a) Dynamic schemes/technology/current events are regularly tested in GA.
98.(a) Computer applications form a distinct component of the CBT 2 syllabus.
99.(a) Quick, accurate formula recall is essential under exam time pressure.
100.(a) Well-rounded preparation across all topics is central to CBT 2 performance.